Series-thyristor subsynchronous damper for power generators

Details Series-thyristor subsynchronous damper for power generators Series-thyristor subsynchronous damper for power generators

1981-01-30

1983-05-17

Hickey, R. J.

Electricity: single generator systems

Generator control

With means for suppressing, eliminating or minimizing...

322 29, 322100, 361 20, H02H 706

Patent

active

043842461

ABSTRACT:
A voltage source is connected in series with the neutral secondary winding on a generator step-up transformer through an electrical reactance. A control circuit and a pair of thyristor banks are employed to apply the voltage source to the transformer winding to dampen sybsynchronous resonance currents and to prevent torsional mode vibrations from occurring within the generator.

REFERENCES:
patent: 3813593 (1974-05-01), Tice et al.
patent: 3999115 (1976-12-01), South et al.
patent: 4242628 (1980-12-01), Mohan et al.
patent: 4311253 (1982-01-01), Putman et al.
patent: 4329637 (1982-05-01), Kotake et al.

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